Fix TypedPropertyPath.toDotPath() resolution for raw paths.

We now properly implement resolution and delegation for raw paths not requiring TypedPropertyPath.of(…) usage at the call site.

See: #3400
Original Pull Request: #3409

Author: mp911de

src/main/java/org/springframework/data/core/PropertyReferences.java

@@ -315,6 +315,7 @@ static class ResolvedKPropertyReference<T, P> extends ResolvedPropertyReferenceS
 			return property.call(obj);
 		}
 
+
 	}
 
 }

src/main/java/org/springframework/data/core/TypedPropertyPath.java

@@ -147,12 +147,12 @@ default TypeInformation<P> getTypeInformation() {
 	@Override
 	@Nullable
 	default PropertyPath next() {
-		return null;
+		return TypedPropertyPath.of(this).next();
 	}
 
 	@Override
 	default boolean hasNext() {
-		return false;
+		return TypedPropertyPath.of(this).hasNext();
 	}
 
 	@Override

src/main/java/org/springframework/data/core/TypedPropertyPaths.java

@@ -353,6 +353,16 @@ public PropertyReferenceWrapper(PropertyReference<T, P> property) {
 			return property.get(obj);
 		}
 
+		@Override
+		public @Nullable PropertyPath next() {
+			return null;
+		}
+
+		@Override
+		public boolean hasNext() {
+			return false;
+		}
+
 		@Override
 		public TypeInformation<T> getOwningType() {
 			return property.getOwningType();
@@ -421,6 +431,16 @@ static class ResolvedPropertyReference<T, P> extends ResolvedTypedPropertyPathSu
 			return function.get(obj);
 		}
 
+		@Override
+		public boolean hasNext() {
+			return false;
+		}
+
+		@Override
+		public @Nullable PropertyPath next() {
+			return null;
+		}
+
 	}
 
 	/**
@@ -443,6 +463,16 @@ static class ResolvedTypedPropertyPath<T, P> extends ResolvedTypedPropertyPathSu
 			return function.get(obj);
 		}
 
+		@Override
+		public boolean hasNext() {
+			return false;
+		}
+
+		@Override
+		public @Nullable PropertyPath next() {
+			return null;
+		}
+
 	}
 
 	/**
@@ -471,6 +501,15 @@ static class ResolvedKPropertyPath<T, P> extends ResolvedTypedPropertyPathSuppor
 			return property.call(obj);
 		}
 
+		@Override
+		public boolean hasNext() {
+			return false;
+		}
+
+		@Override
+		public @Nullable PropertyPath next() {
+			return null;
+		}
 	}
 
 	/**